Each bar shows the contribution of a single driver to GHG emission trends during a determined period. The thick short black lines indicate the combined effect of all emission drivers, i.e. the overall GHG emission trend during the period considered. Different data sources have been used for the calculation of carbon intensity, which may result in a high uncertainty of the results for this driver.
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When the urge to give flowers takes you, choose a potted plant from a local supplier. A lot of exotic flowers are grown in greenhouses great distances away. Aside from the issue of transport, there can be high social and environmental costs. For example, in Colombia, the flower industry uses enormous quantities of polluting pesticides, and in Kenya, horticulture requires a lot of water which reduces local water resources. As an alternative ask your flower shop for Fairtrade or organically produced flowers.
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